锚杆加固机理的试验研究现状

从锚杆形状和灌浆体特性对锚杆抗拔承载力的影响,锚杆的倾斜角、节理面的粗糙度、锚杆长度及直径等加锚设计参数对加固效果的影响,锚杆加固对岩体的弹性模量、抗压强度、内摩擦角、凝聚力和渗透系数等岩体参数的影响3个方面介绍了国内外相关的试验研究成果,讨论了岩体锚固的试验研究中存在的问题及进一步的研究方向.

Experimental study on anchorage mechanism of anchor bolts

A summary was made on some advances in experimental study on the anchorage mechanism of anchor bolts from three aspects, i.e. the influences of the bolt shape and grout property on the pull-out load capacity of anchor bolts, the influences of design parameters of anchor bolts, including their inclination, roughness of joint surface, length, and diameter, on the effect of rock mass reinforcement, and the effect of reinforcement with anchor bolts on the parameters of anchored rock mass, including the elastic modulus, compressive strength, internal friction angle, cohesion, and permeability coefficient. Finally, some problems existing in the experimental study and the direction for the further study were discussed.